Which of the following ordered pairs is a solution of the given system of linear equations? ( best answer gets brainliest and full ratings. )

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0